{"id":"det-018","license":"CC-BY-4.0","data":{"title":"Compliant porch column: heavy timber / wrapped / steel (three details)","file":"/diagrams/det-018-porch-column-strategies.svg","caption":"FA Exhibit DET-018. Porch column strategies.","alt":"Three not-to-scale porch column sections distinguish Oregon's exposed heavy-timber exception from FEMA guidance for a wrapped timber pier and project-specific evaluation of a fireproofed steel column.","kind":"diagram","rights":"cc-by-4.0","depicts":"This sheet separates three commonly collapsed column strategies","identifiableAddress":false,"exifGpsStripped":true,"derivation":"ORSC R327.2 / .3.4.4 + FEMA P-737 §4.7 / TABLE 9 · ORIGINAL FA DIAGRAM; PRIVATE EXHIBIT O STUDIED FOR COMPARISON CONVENTION ONLY.","technicalReviewer":"Grayson Graham","lastVerified":"2026-08-25T00:00:00.000Z"}}